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Finding the Fourth Proportional to 253,435.37, 380,207.72 and 75,957.89

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Solution

The fourth proportional to 253,435.37, 380,207.72 and 75,957.89 is: 113,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,435.37 : 380,207.72 = 75,957.89 : x
  2. Step 2: Convert to fraction form
    253,435.37/380,207.72 = 75,957.89/x
  3. Step 3: Cross multiply
    253,435.37x = 380,207.72 × 75,957.89
  4. Step 4: Simplify right side
    253,435.37x = 28,879,774,461.77
  5. Step 5: Solve for x
    x = 28,879,774,461.77/253,435.37
  6. Step 6: Final answer
    x = 113,953.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.